16898890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{21391}}^1$

素因数の和:21477

約数の個数: 16

約数和(自身を含む): 30804480

約数和(自身を除く): 13905590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 21391, 42782, 106955, 213910, 1689889, 3379778, 8449445, 16898890]

約数ペア:

[(1, 16898890), (2, 8449445), (5, 3379778), (10, 1689889), (79, 213910), (158, 106955), (395, 42782), (790, 21391)]